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What a
stunner!
FREE

www.lokring.com

SEE
PAGE
333

@lokringnorthern

LOKRING WOWS

OIL & GAS
INDUSTRY WITH
SAVINGS OF 40%
AND MORE
By Lokring Reporter

Lokring continues to impress industry with its
innovative technology that consistently delivers health
and safety benefits. The company has recently been
recognised by an operator, who has won an HSE award
for implementation of a reduced hotwork project. This
was made possible by the use of Lokring’s unique pipe
joining technology.

Financial Savings

Lokring’s patented technology has replaced much of
the welding on Statoil’s Kårstø plant, with over 3,000
operations using the solution being performed on
utility systems at the facility. Lokring piping joints have
been used to help develop safe and secure operations
at Kårstø, by reducing the number of ignition sources.
The use of Lokring technology has also resulted
in significant potential for financial savings for the
project.

Increased Safety
Cost-efficiencies

It’s not often that increased safety and cost-efficiencies
go hand in hand. So take heed, it’s a win-win for those
who use Lokring!

Don’t get
caught
hanging
about..

SEE
PAGE
2

Lokring in
action!
SEE
PAGE
4

It’s been reported across the globe
that Lokring is dedicated to the
relentless pursuit of perfection,
when it comes to satisfying the
industry’s fluid and gas connection
requirements. By designing and
producing the most advanced
connectors on the market today,
Lokring has won a loyal client base.

2 LOKRING NEWS

LOKRING IN

Lokring has been heralded as having
provided BAE Systems with major cost
savings to both construction and through
life costs on its Astute Class submarines.
Lokring’s mechanical couplings - which
involve a hydraulically driven vice tools
that swages the fittng onto the pipe to form
a permanent connection – have already
been proved in the oil and gas industries
and across the US Navy surface
ship fleet.
Qualification testing included a
500G deck-shock test which
simulated the impact
of a depth charge
on the outer skin of
the submarine. In a
pilot, more than 160
Lokring connectors
were submitted to
the full cycle of
pressure testing,
with all passing
without leakage.

This led to extending the use of the
coupling with more than 1,000 fitted on
two vessels, and a further 5,000 on the
remaining five vessels within the fleet. In
total, an impressive 26,000+ fittings were
purchased for this project.
Fittings were used on Level 1
firefighting systems, the most safety
critical applications on board.
Further Level 1 applications could
include hydraulics on Fight, Flight and
Manoeuvre systems and hydraulics
on missile loading applications.
Lokring’s
75%
reduction
on
traditional welding costs have
been demonstrated as a major
contribution towards affordability of
future projects. The permanent nature
of Lokring’s connections helps
mitigate ongoing maintenance
costs, reducing the requirement
for crack propagation checks
during refit.

Don’t get caught
hanging about use lokring
Lokring is well known for providing
the technology which results in safeand time-efficient projects across the
North Sea. Lokring Northern (UK)
Managing Director, Ross Millar told us
about a recent project, during which
the company was responsible for the
efficiencies gained on a flare stack
re-fit.
“Our client was replacing flare pilot
lines, and 4x 70 metre pipelines
were replaced using approximately
50 Lokring Low Temperature Carbon
Steel fittings. Crucially for our client,
this eradicated the requirement for
70 metres of expensive scaffolding as
installations were carried out by rope
access technicians.
“6 metre lengths of pipe were winched
into position and connected using
the Lokring cold worked permanent
solution. This method eradicated
unnecessary manual handling and
took significantly less time than would
be required for a high risk hot-work
solution.”
“Once again, a triumph of safety and
financial benefits, courtesy of Lokring.”

We spoke to the “333” to
find out exactly how the
revolutionary Elastic Strain
Preload (ESP®) technology
works…

THE ”333’S” VITAL STATISTICS:
• NACE Compliant
• A333 (LTCS) Qualified
• 3.2mm Corrosion Allowance

D u r i n g
installation,
the
axial movement of
the Lokring driver
over the fitting
body
swages
the body onto
the pipe surface,
compressing the

Where you’re
likely to
bump into the
“333”…

L

E

A

THE LOW
DOWN

L

What a stunner! The Lokring
“333” Process Fittings have been
catching everyone’s eye, and no
wonder. It’s THE mechanical “weld
equivalent” pipe connection that’s
winning fans across the globe.
With a vast range of potential
applications, the “333” is just
what you’ve been waiting for...

A

PAGE 333

E

333 LOKRING NEWS

pipe wall first elastically
and
then
plastically.
The pipe wall resists
this
swaging
action,
generating
high
unit
compressive loads at the
contact points between
narrow
sealing
lands
inside the fitting body
and the pipe surface.
These contact stresses
are
sufficiently
high
to plastically yield the
pipe surface under the
multiple sealing lands,

forming
a
360degree
circumferential,
permanent,
metal-tometal seal between the
pipe and fitting body. The
driver, which experiences
a small increase in
diameter (elastic strain)
during installation, exerts
an elastic, radial pre –
load on the metallic
seals for the life of the
connection.

Applications may include:
Plant
Instrument
Utility
Air Fuel (Diesel)
Fuel Gas
Natural Gas Lube
Seal and Hydraulic Oil
Closed Drains (Hazardous and Non-Hazardous
OpenDrains (Hazardous and Non Hazardous)
Butane and Propane
Process Vapour
LP Flare

HP Flare
Flare (Sour)
Process Fluids (Sour)
Atmospheric Vents
Steam Gases (N2, O2 ,H2, He etc.)
Inert Gas
Hydrocarbons and LPG
Hydrocarbon Solvents
Distillates & Aromatics
Condensate
Methanol
Sulphuric Acid (95-98% Conc)
Heat Transfer Fluids
Cooling, Utility and Fire Water
Crude and HP Storage LPG connection lines

LOKRING IN
ACTION

It’s been reported across
the globe that Lokring
is
dedicated
to
the
relentless
pursuit
of
perfection, when it comes
to satisfying the industry’s
fluid and gas connection
requirements. By designing
and producing the most
advanced connectors on
the market today, Lokring

has won a loyal client
base. The company has
reported sales growth in
2015, and attributes this
to the significant cost and
safety benefits it offers its
customers, as well as an
impressive installation and
after-sales services that is
second to none.



4 LOKRING ACTION

Case Studies
ExxonMobil – Ethylene Plant (UK)

FPSO Site Run
What the customer needed:
During
a
shutdown
of
the FPSO, there was a
requirement to replace a
number of existing high
pressure hydraulic lines due
to corrosion under pipe
supports.

Initially planned with 3
weeks allowed for the
execution of the welded
system,
the
job
was
completed by Lokring trained
pipe fitters in 6 days.
200+ Lokring fittings were
installed in areas of limited
access.

Initially planned as a fully
welded
system
it
was
deemed more time efficient
to run the system using
Lokring as a weld equivalent
alternative.

Each system was then
tested as per ASME code
guidelines to 1.1 x design
pressure (187 bar).

What Lokring did:

What the customer said:

System: Hydraulic Oil
Function: Operating Water
Tight Doors
Pipe: Stainless Steel
Diameter: 1”
Pressure: 170 bar
No. of Lines: 3
Individual Line Length: 400m

“Due to a shortage of
welders at the peak of our
shutdown activity we had to
look for alternatives to the
traditional welding methods.
Lokring proved to be a fast
reliable and cost effective
way to reduce the workload
of those welders we did
have.”

Zero fittings leaked.

What Lokring did:
The first 4” job at ExxonMobil
FEP involved a tie-in using a
4” Flange and a 4” Coupling.
With Lokring representatives
carrying
out
installer
training in the morning,
the installation was then
overseen as a free service
and fully completed in the
afternoon.
The Lokring 4” MAS Flange
and 4” MAS Coupling were
used to tie-in a new spool
on-site.
The alternative option was
2 field ‘position’ welds
- requiring habitats, full
isolation
of
surrounding
piping systems, firewatcher,
gas checks and radiography
of the weld.

The surfaces of the 3 ends
of pipe were prepared,
gauged and marked - as
per Lokring protocol before the 2 fittings being
installed. The full job was
completed in less than 1
hour.
The site norm for a field
weld is 2.5 hours per butt
weld NOT including the
subsequent NDT that would
be required.
Additionally with the flange
bolted
BEFORE
initiating
Lokring install, there were
no difficulties in aligning
bolt holes/torqueing pipe.
Lokring’s job mitigated field
hot work and took 20% of
the time allowing savings on
scaffolding and labour.

Advantages
Discovered

5 LOKRING CASE

Solvent Distribution Manifold
What the client needed:
Solvent distribution manifold
requiring
reconfiguration
outside of shutdown
14 site connection to be
made on 1 ½” stainless
steel.

NDT was not required
as post-installation visual
checks
confirm
correct
installation.

A traditional site welding
solution
would
involve
significant difficulties:
•Flushing of solvent lines
•Plant shutdown to allow
hot-work activity
•Plant shutdown to allow for
10% NDT
•Duration of task judged to
take approximately 2 weeks

Lokring
eliminated
downtime,
reduced
installation time and
eradicated the dangers
involved
with
welding
in hazardous areas, while
reducing the overall cost of
the installation.

What Lokring did:

“The one key element
that allowed for project
implementation within the
“Live Plant” was use of the
Lokring technology. Projects
that had a Hot Work element
(welding
on
a
solvent
Line) were previously only
considered during a planned
plant shut-down. The use of
the Lokring component has
opened up opportunities for
intrusive work to be carried
out with reduced risk.”

The above issues were
avoided by utilising Lokring
Weld Equivalent Connections.
Flushing of the system
became much less arduous
as the system does not need
to be dry for the application
of Lokring fittings.
Shutdown was not required
as Lokring is a Cold Work
process.

Hot-work permits were not required
as Lokring is a Cold-worked solution.

Using Lokring, the task
took just 3 days.

Habitat erection was not required as
the installation of a Lokring fitting is
an intrinsically safe operation with
no spark potential.
These installations were carried out
using a Mobile Elevating Work Platform
(MEWP) therefore eradicating the
need for & expense of scaffolding.

What the customer said:

Installation of Lokring fittings could
be carried out irrespective of weather
conditions. Wind and rain have the
potential to cause welding work to
cease at any point during the task.
There is no requirement for post
installation NDT on a Lokring fitting
which further reduces time and cost
implications.
Using Lokring fittings, the entire job,
including a 60 minute pressure test,
took less than 5 hours to complete.
As per the tender which quoted
traditional welding methods, this task
would have taken 3 days and a 3
day cessation of sampling would not
have been deemed acceptable.

Hydrogen Line Upgrade
What the client needed:
• Site insurers on an Active
Pharmaceutical Ingredients
plant instructed that all
joints on Hydrogen Lines,
where there was the potential
for the Line to be struck
by operatives or machinery
working in the vicinity, must
be welded connections.
• Existing twin ferrule fittings
were to be replaced by a
welded or weld equivalent
connection.
• The risk of loss of
containment
and
the
potential for explosion were

the driving forces behind
this initiative.

Two
hydrogen
lines,
approximately 25m in length,
constructed with twin ferrule
fittings were to be upgraded
to fully welded systems.
• Hydrogen is used as part
of the process of sampling
site
emissions
to
the
atmosphere.
• Sampling is carried out on
a continuous basis and can
only be interrupted for brief
periods of time.

What
Lokring did:


Two
possible
methods
of
upgrading the system were
considered by the client:
On Site Orbital Welding and
Lokring Mechanical Weld
Equivalent Connectors

Based
on
tenders
received from independent
contractors, Lokring was
priced at 20% less than
the cost of the traditional
welded option.

• Lokring was chosen for
the project and further
benefits were uncovered
during the execution of this
work scope.
• 8 x 3/8” Stainless Steel
Tube Couplings were used
to complete the task.
Cost
reductions
greater
than the expected 20%
were found due to the
speed of the installation
and associated reduction.

6 LOKRING

WELDING NO MORE

Donal Heery, Technical Sales
Manager for Lokring, has today
speculated on the foreseeable
end to all welding on pipework
of 4” and below, due to
the advanced
technology
provided by his company.
Of particular importance to
the oil and gas industry, he
lists Lokring’s focus on cold
work brings the following
advantages:
• Fabrication of piping systems
utilising Lokring fittings are
intrinsically safe - no torches,
open flames or sparks are
associated with installation or
maintenance
• Elimination of fire or
explosion risks inherent in hot
work
• No fumes or smoke are
produced, eliminating the need
for special ventilation and
creating a safer environment
particularly in confined spaces
• No hazardous materials are
used in the process, created
by the process or required

to be disposed of after the
process is complete
• Potential for injuries is
dramatically reduced due to
lack of welding or grinding.
Donal commented: “It’s clear
to me that the cold work
technology employed by
Lokring provides a myriad of
safety benefits to those who
use it. In fact, add those to
the cost efficiences we bring
to our customers, and I find
it hard to believe there are
people out there NOT using
Lokring products. I urge them
to get in touch with me and
find out more.”

Donal Heery, Technical
Sales Manager for Lokring,

“It’s clear to me that the cold
work technology employed by
Lokring provides a myriad of
safety benefits”

Spot the difference
Lokring Wordsearch

Lokring

Vs

Weld

Can you spot the 3 visual differences between these images?
Extra points for any unseen differences between the methods used above !

Please email dheery@lokring.com for the correct answers
The first correct respondent wins exclusive “Lokring” Titleist pro V1 Golf Balls

7 LOKRING NEWS

Breaking News:

LOKRING FASTER
THAN BOLT(S)
It’s
official

Lokring
technology provides recordbreaking results!

Lokring straight couplings are
commonly used as a method
of eradicating unnecessary
flange
connections
in
systems where a butt-weld
equivalent
connection
is
preferred.
Flange connections are a
common source of leakage
with
approximately
10%
of hydrocarbon releases
attributed to flanges (HSE
RR672).
Lokring fittings on the other
hand have demonstrated
their leak free integrity with a
helium leak rate of less than
2 x10-11std.cc/sec. That’s
approximately half a cubic
centimetre of helium every
1,500 years.
However, a less commonly
considered fact is that Lokring
straight couplings are a
significantly faster method
of connecting spools than
the more traditional bolted
configuration.

With site installations having
been carried out in as little
as 2 1/2 minutes it is easy to
see how Lokring can save time
over the course of a project.
“Couple”
this
with
the
eradication
of
costly
prefabrication work and it’s
clear to see why Lokring wins
gold for performance, every
time.

Sudoku

THERE is just one simple rule
in Sudoku. Each row and
each column must contain the
numbers 1 to 9, and so must
each 3 x 3 box. This is a logic
puzzle, and you should not have
to guess.
Saturday’s solution:

8 LOKRING

BRITAIN’S MOST

POPULAR

STAFF

Ross Millar – Managing “Dictator “
Age – Undisclosed
Mental Age – Akin to that of his 3 year
old son

Tom Brown – Senior(ish) Technical
Sales Consultant
Age – 26 and a quarter
Hobbies – Golf, High Tea

Raised on the mean streets of Kirkcaldy,
Ross showed signs of promise as young
footballer and had his dream of becoming
a professional realised when he signed
for Hibernian FC. Undoubtedly a day of
immense pride for the young Hearts fan.

Born into a land that produced such greats
as McIlroy, McDowell and Clark, it was
almost inevitable that Tom would become
a keen golfer. Unfortunately, as we know,
no amount of keenness can make up for
talent and Tom still struggles around the
course with a handicap of 18 (on a good
day).

Realising “I was never gonnae play for
Real Madrid”, Ross took up Chemical
Engineering at The University of
Strathclyde where he received his Bachelor
of Engineering.
Through inexplicably high performance
in an array of Technical Sales and Sales
Managerial roles, Ross was given the
opportunity to run a distributorship by
Lokring Technologies LLC.
Starting alone from his own front room,
Ross has built an empire covering Northern
UK and the Republic of Ireland with offices
in Edinburgh, Aberdeen and Leeds.
With a team of 15 employees now under his
command Ross has managed to recreate
the dressing room atmosphere he has
yearned for since his “glory days” at Easter
Road.

Taking an unconventional route into an
industry rooted heavily in engineering, Tom
began his student life destined for The
Bar, by taking up the study of Law at The
University of Dundee. Being somewhat of
a socialite it concerned Tom that such a
career would infringe greatly on his time
at “the bar”, so he opted for a change in
vocation.
Two years later and Tom has flourished in
his role as Technical consultant, dealing
with customers in Aberdeen and Northern
Scotland; so much so that it has seen him
recently promoted to the role of Senior
Technical Consultant with responsibilities
including the mentoring of new recruits.

Andy Steven – Projects Engineer
Age – 25
Hobbies – Boxing, Sheep Farming
Andy is Lokring Northern’s resident celebrity
lookalike with comparisons ranging in
diversity from Joe Hart of Manchester
City to Thor of Valhalla. Other more
obscure comparisons include Ryan Taylor
of Newcastle United and boxing supremo
Floyd “Money” Mayweather.
Having studied Mechanical Engineering with
Aeronautics at The University of Glasgow,
Andy’s natural flair for business drew him
towards a career in sales, with a view to
one day running his own enterprise. After
two years with Lokring as a Technical Sales
Engineer this flair, and his chameleon-like
abilities, made Andy the perfect candidate
for filling the role of “Projects Engineer”.
This role has been created on the back of
tremendous success with the MOD on the
Astute class submarine and CVF Aircraft
Carrier projects. It sees Andy dedicating
his time solely to winning EPC project work
for Lokring Northern both within the UK
and further afield.

Left to Right: Rob Sigsworth, Andy Steven, Neil Anderson, Andrew Kilduff, Zak O’Neill, Jennifer Kelly, Lyndsey Millar, Ross Millar, Rebecca Walker, Donal Heery, Tom Brown, Jim Martin


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